13220233331 has 2 divisors, whose sum is σ = 13220233332. Its totient is φ = 13220233330.

The previous prime is 13220233321. The next prime is 13220233373. The reversal of 13220233331 is 13333202231.

It is a weak prime.

It is an emirp because it is prime and its reverse (13333202231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13220233331 is a prime.

It is a super-2 number, since 2×13220233331² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13220233297 and 13220233306.

It is not a weakly prime, because it can be changed into another prime (13220233321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610116665 + 6610116666.

It is an arithmetic number, because the mean of its divisors is an integer number (6610116666).

Almost surely, 2^13220233331 is an apocalyptic number.

13220233331 is a deficient number, since it is larger than the sum of its proper divisors (1).

13220233331 is an equidigital number, since it uses as much as digits as its factorization.

13220233331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 13220233331 its reverse (13333202231), we get a palindrome (26553435562).

The spelling of 13220233331 in words is "thirteen billion, two hundred twenty million, two hundred thirty-three thousand, three hundred thirty-one".